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Natural strata can be used in observational studies to balance the distributions of many covariates across any number of treatment groups and any number of comparisons. These strata have proportional amounts of units within each stratum across the treatments, allowing for simple interpretation and aggregation across strata. Within each stratum, the units are chosen using randomized rounding of a linear program that balances many covariates. To solve the linear program, the 'Gurobi' commercial optimization software is recommended, but not required. The 'gurobi' R package can be installed following the instructions at <https://www.gurobi.com/documentation/9.1/refman/ins_the_r_package.html>.
| Version: | 2.0.0 |
| Depends: | R (≥ 2.10), caret |
| Imports: | Rglpk, stats, plyr, pps, sampling, ggplot2, rlang, ramify, slam |
| Suggests: | knitr, rmarkdown, markdown, testthat (≥ 3.0.0), DT, stringr, covr, gurobi |
| Published: | 2021-10-15 |
| DOI: | 10.32614/CRAN.package.natstrat |
| Author: | Katherine Brumberg [aut, cre] |
| Maintainer: | Katherine Brumberg <kbrum at wharton.upenn.edu> |
| BugReports: | https://github.com/kkbrum/natstrat/issues |
| License: | GPL-3 |
| URL: | https://github.com/kkbrum/natstrat, https://kkbrum.github.io/natstrat/, https://www.gurobi.com/documentation/9.1/refman/ins_the_r_package.html |
| NeedsCompilation: | no |
| Materials: | README NEWS |
| CRAN checks: | natstrat results |
| Reference manual: | natstrat.pdf |
| Vignettes: |
Introduction to natstrat |
| Package source: | natstrat_2.0.0.tar.gz |
| Windows binaries: | r-devel: natstrat_2.0.0.zip, r-release: natstrat_2.0.0.zip, r-oldrel: natstrat_2.0.0.zip |
| macOS binaries: | r-release (arm64): natstrat_2.0.0.tgz, r-oldrel (arm64): natstrat_2.0.0.tgz, r-release (x86_64): natstrat_2.0.0.tgz, r-oldrel (x86_64): natstrat_2.0.0.tgz |
| Old sources: | natstrat archive |
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These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.